Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 237 · 40 questions

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

1. 1.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) only darkness (d) a brighter view
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) black cloth (d) still clear water
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
5. 5.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) two small mirrors (d) yeast
6. 6.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
7. 7.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
8. 8.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) dark soil
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same light (c) the same mirrors (d) how clear the view is
10. 10.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) black cloth (d) aluminium foil
11. 11.True or false: a mirror reflects light well. (a) False (b) True
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) yeast (d) a pencil
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
15. 15.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same light
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) vinegar (d) a pencil
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same light (c) the angle of the mirrors (d) the object we look at
20. 20.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a pencil (c) sticky tape (d) a ruler
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) turmeric powder (d) two small mirrors
23. 23.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) black cloth (d) dark soil
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) sticky tape (c) an empty juice carton (d) a ruler
26. 26.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) black cloth (d) a mirror
27. 27.🔭 How many times does light bounce off a mirror in a simple periscope?
28. 28.True or false: a pencil is needed for the periscope. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) a shiny steel plate
30. 30.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) still clear water
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a magnet (d) a pencil
32. 32.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) turmeric powder (d) yeast
33. 33.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
34. 34.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
35. 35.True or false: a dull brick reflects light poorly. (a) False (b) True
36. 36.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a pilot in a plane (c) a submarine crew (d) a baker
37. 37.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the object we look at (c) how clear the view is
39. 39.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) the ground (d) taller walls
40. 40.True or false: aluminium foil reflects light well. (a) False (b) True

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